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Addgene

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We narrowed to 729 results for: NSI;

Showing: 361 - 380 of 729 results

  1. CRISPR-mediated Plant Base Editors

    Type
    Blog Post
    Published
    Jan. 3, 2019, 1:35 p.m.
    ...of the desired T-A base pair. Figure 1: Transition mutation (C>T, G>A, A>G, and T>C) installation...also constructed smaller vectors suitable for transient assays using protoplast transformation. Cytosine...72 hours post-transformation/transfection in a transient assay. For stable transformation, regenerated ...

  2. Binning Singletons: Tackling Conference Networking When You Don’t Know Anyone

    Type
    Blog Post
    Published
    Feb. 18, 2020, 2:15 p.m.
    ... bins together at a mixer. We call this Quorum Sensing, after the phenomenon in bacteria that occurs when...gene expression in response to changes in cell density. At the mixer, they meet other Mentors and Singletons...briannadoesbio) June 22, 2019 Favorable conditions - Expansion of networks The last stage is Exponential Growth...

  3. Fluorescent Proteins 101: Aptamer Fluorophores

    Type
    Blog Post
    Published
    April 11, 2017, 2:30 p.m.
    ... can be to get a “bad batch”); Customizable sensitivity and detection - since they frequently undergo...fluorescence for readout may render this approach less sensitive in most applications. Learn About Fluorescent ... sensor could save precious minutes in a time sensitive detection assay. In 1999, Grate and Wilson paired...

  4. Plasmids 101: Gateway Cloning

    Type
    Blog Post
    Published
    Jan. 12, 2017, 3:30 p.m.
    ...clone. You will also need to use a E. coli strain sensitive to CcdB (e.g. DH5α, TOP10, Mach1). The ccdB gene... the CcdB protein inhibits the growth of CcdB sensitive E. coli strains, most colonies should contain ...sequences, start codon, stop codons, reading frame considerations, etc). This video demonstrates how to use the...

  5. Antibodies 101: Immunoprecipitation

    Type
    Blog Post
    Published
    Dec. 7, 2021, 2:15 p.m.
    ...When choosing beads, there are several factors to consider. Agarose beads are sponge-like and vary in shape...express the protein of interest, such as a sample transiently transfected or stably infected with the protein...appealing, but the disadvantages must be carefully considered before using. For example, the tag may affect...

  6. Viral Vectors 101: Pseudotyping

    Type
    Blog Post
    Published
    April 20, 2021, 2:30 p.m.
    ... the virus and is less affected.  Altering sensitivity to serum. Different pseudotyped viruses are differentially... protein that binds phosphatidylserine and low-density lipoprotein receptors (LDLRs) on a cell surface...CD, Friedman T, McClure MO, Weiss RA (1997) Sensitization of rhabdo-, lenti-, and spumaviruses to human...

  7. CRISPR-based Genome Editing Systems For Editing in E. coli

    Type
    Blog Post
    Published
    April 13, 2021, 1:15 p.m.
    ...pTargetF system consists of one plasmid that expresses the S. pyogenes Cas9, a temperature-sensitive replicon...changed the replicon of pCas into a non-temperature-sensitive replicon, and 3) added the sacB gene for counterselection...

  8. 5 Reasons to Use Reddit for Science Communication

    Type
    Blog Post
    Published
    Oct. 20, 2016, 2:30 p.m.
    ...place and give you some reasons why you should consider using Reddit to share your science. While Reddit...permanent reference by the Winnower. The only small downside to the AMA from my end as an organizer/promoter... general advice on how to meet people, how to transition out of academia, and other science career topics...

  9. Healthcare Consulting: A Door to the Business of Life Sciences

    Type
    Blog Post
    Published
    Oct. 13, 2016, 2:30 p.m.
    ...in the door When I was first considering preparing for and transitioning to a career in healthcare consulting...fast turnover of projects, pressure to maintain consistently high levels of performance, and occasionally...

  10. Viral Production at Addgene

    Type
    Blog Post
    Published
    Oct. 24, 2023, 1:15 p.m.
    ...staining and the molecular weight and relative intensity of the viral capsid proteins are analyzed. The...preparation shows that the vast majority of the vectors consist of full particles (white arrowhead) relative to...targeting integrated copies of the lentiviral Rev responsive element (RRE) gene and the cellular ribonuclease...

  11. Fluorescent Proteins 101: When GFP lets you down

    Type
    Blog Post
    Published
    Aug. 23, 2018, 12:05 p.m.
    ...to be examined on a case-by-case basis. GFP is sensitive to acid The chromophore of GFP can exist in a ...determined in vitro by measuring the fluorescence intensity of purified protein at different acid concentrations... its fluorescence and therefore GFP cannot be downsized by deleting residues. Only about 10 amino acids...

  12. Adeno-associated Viruses (AAVs) for Genome Editing

    Type
    Blog Post
    Published
    March 27, 2018, 1:32 p.m.
    ...vectors are then packaged into AAV virions via transient transfection of 293T cells with helpers, and used...disadvantages to the AAV-based approach that must be considered when deciding whether to use AAV or CRISPR for... is a Professor of Oncology at the Lombardi Comprehensive Cancer Center, Georgetown School of Medicine...

  13. Multicolor Animals: Using Fluorescent Proteins to Understand Single Cell Behavior

    Type
    Blog Post
    Published
    March 5, 2019, 1:08 p.m.
    ... to solve the problematically low fluorescent intensity of previous versions of Brainbow. Developed from...this system useful for visualization of cellular extensions, such as neurons in the fly visual system, which...cutaneous melanoma induced by mutant BRaf arises from expansion and dedifferentiation of mature pigmented melanocytes...

  14. Hot Plasmids: Summer 2024

    Type
    Blog Post
    Published
    Aug. 27, 2024, 1:15 p.m.
    ...material, which ensures the editor will only be transiently present in transduced cells, limiting off-target.... (2024). Engineered virus-like particles for transient delivery of prime editor ribonucleoprotein complexes...CRISPRoff system — a programmable epigenetic editor consisting of dCas9 fused to a DNA methyltransferase — that...

  15. March for Science

    Type
    Blog Post
    Published
    April 21, 2017, 2:30 p.m.
    ...States government? Politics and science are intrinsically linked: governments exist in reality and science...include science in decision making, it will be considered a success. Below are resources for the march ... “politicized science” ABC News: White House considering gutting 38 EPA programs: draft budget  Science...

  16. CRISPR 101: Homology Directed Repair

    Type
    Blog Post
    Published
    Jan. 26, 2023, 2:15 p.m.
    ...donor (e.g., sister chromatid, plasmid, etc.), and consists of three pathways: classical double-strand break...you need to generate a knock-in.   General considerations for designing a repair template to create mutations...cells than their plasmid counterparts. Another consideration for dsDNA templates is their ability to randomly...

  17. Plasmids 101: Expressing shRNAs for RNA Interference

    Type
    Blog Post
    Published
    June 17, 2025, 1:15 p.m.
    ...retroviral backbones. On some occasions, shRNAs are transiently expressed using either AAV backbones or species-specific...synthetic, mature siRNA. siRNAs are delivered via transient transfections and are handy for quick in vitro...time you need to knock down a gene, maybe you’ll consider using RNAi! References and Resources References...

  18. 10 Steps to a Perfect Science Talk

    Type
    Blog Post
    Published
    Aug. 23, 2016, 2:30 p.m.
    ... social science to an audience that I thought consisted of all biologists. The social scientists in the...a solution or overcame obstacles. Take time to consider the order of your narrative. Scientists do this...are worried that this might sound condescending, consider explaining the term on a slide but not reading...

  19. Site Directed Mutagenesis by PCR

    Type
    Blog Post
    Published
    Aug. 2, 2016, 2:30 p.m.
    ...repetitive sequences, but if present, a minor extension can usually ensure that the 3’-base(s) do not ...manufacturers’ PCR protocol. Be sure to adjust the extension time to match the size of your template. Amplification...PubMed PMID: 2448875. 4. Xia, Yongzhen, et al. "New insights into the QuikChangeTM process guide the use of...

  20. Scientific Reproducibility - Focusing on Solutions at the Minisymposium on Reproducibility

    Type
    Blog Post
    Published
    May 18, 2018, 7:32 p.m.
    ...really there are no positive results to be found. Consider the hypothetical situation in Figure 1 where many... (or pre-publish) sound data even if it isn’t considered immediately impactful. Down the line we may see...Scientific Figures into Dashboards and Share Your Insights Who gives a tweet? 9 facts about scientists on...
Showing: 361 - 380 of 729 results